Lemon
 |
A Kepler. 
It consists of less than half of a circularArc rotated about an axis passing through the endpoints of the Arc. The equations of the upper and lowerboundaries in the 
plane are
for
and 
. The Cross-Section of a lemon is a Lens.The lemon is the inside surface of a Spindle Torus.See also Apple, Lens, Spindle Torus- Banach Algebra
- Banach Fixed Point Theorem
- Banach-Hausdorff-Tarski Paradox
- Banach Measure
- Banach Space
- Banach-Steinhaus Theorem
- Banach-Tarski Paradox
- Bang's Theorem
- Bankoff Circle
- Banzhaf Power Index
- Barber Paradox
- Barbier's Theorem
- Bare Angle Center
- Bar (Edge)
- Barnes G-Function
- Barnes' Lemma
- Barnes-Wall Lattice
- Barnsley's Fern
- Bar Polyhex
- Bar Polyiamond
- Barrier
- Barth Decic
- Barth Sextic
- Bartlett Function
- Barycentric Coordinates